CVE-2009-1889

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-07-01 · updated 2026-06-16
Weakness: CWE-399

Description

The OSCAR protocol implementation in Pidgin before 2.5.8 misinterprets the ICQWebMessage message type as the ICQSMS message type, which allows remote attackers to cause a denial of service (application crash) via a crafted ICQ web message that triggers allocation of a large amount of memory.

Affected products

Pidgin: through 2.5.7; 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1, 2.2.0 (+18)

References

http://developer.pidgin.im/ticket/9483
http://pidgin.im/pipermail/devel/2009-May/008227.html
http://secunia.com/advisories/35693
http://secunia.com/advisories/35697
http://secunia.com/advisories/35706
http://secunia.com/advisories/37071
http://www.redhat.com/support/errata/RHSA-2009-1139.html
http://www.securityfocus.com/bid/35530
http://www.ubuntu.com/usn/USN-796-1
http://www.vupen.com/english/advisories/2009/1749
https://bugzilla.redhat.com/show_bug.cgi?id=508738
https://exchange.xforce.ibmcloud.com/vulnerabilities/51448

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